The prospect of war raises the stakes and heightens the intensity of political disagreement. But the outbreak of war often has the reverse effect, with pressures for national unity narrowing the spectrum of debate. In the weeks leading up to Russia’s invasion of Ukraine, arguments within the Republican Party were particularly intense, leading analysts like Amber Phillips of The Washington Post to write about “a huge split among Republicans on how to characterize what’s happening.”

As the conflict progressed, this huge split has been papered over. Voices, notably Tucker Carlson of Fox News, that were previously loudly warning against American involvement in the conflict have become more subdued, hewing closer to the Republican Party line condemning the invasion and criticizing Joe Biden for alleged weakness.

This progression can be seen most clearly in the most famous Republican, Donald Trump, who has never been shy about praising Vladimir Putin. On February 22, in an interview on the The Clay Travis and Buck Sexton Show, the former president celebrated Putin’s strategy of recognizing as sovereign republics the breakaway territories of Donetsk and Luhansk. This was, he said, “genius.” Trump chortled, “I said, ‘How smart is that?’ And he’s going to go in and be a peacekeeper. That’s the strongest peace force. We could use that on our southern border.” But just four days later, speaking at the Conservative Political Action Conference in Orlando, Trump shifted his tack, calling the invasion “an atrocity that should have never been allowed to occur.” He did continue to insist that Putin was “smart,” in contrast to American leaders who were “dumb.”

Yet, even if Trump has toned down his words about Putin, this shift isn’t likely to last long. While passions about the war may cool in the coming weeks and months, the divisions that existed before the invasion of Ukraine are likely to resurface since they are a product of fundamental ideological differences.

In a Washington Post column, Amber Phillips provided a useful taxonomy of three primary types: the Hawks, the Putin Sympathizers, and the “Why Should We care?” Contingent. (For the sake of clarity, I’ve shifted the order of her listing.) To this list one could note there is a fourth ideological type that existed in the past but now is notably missing: the Republican Realists.

The Hawks are the most familiar of the four types. These are the unreconstructed Cold Warriors, the people who never trusted the Russkies and perhaps thought glasnost and perestroika were fake. Some of them still tend to refer to Russia as the Soviet Union. Mitt Romney is the emblematic figure here. The Hawks want a strict hard-line policy of containing and isolating Russia. They want NATO to act as the guard dog that makes sure Russia doesn’t dare cast a shadow outside its own borders.

The Putin Sympathizers are the traditionalist authoritarians who have come into prominence in the Trump era. They see Putin as a bulwark against global liberalism, someone who upholds gender norms and Christian values. Although often associated with Trump, this tradition can be seen earlier in Pat Buchanan.

The “Why Should We Care?” Contingent are the heirs of the older Robert Taft Republican isolationists. They insist that America needs to look after its domestic concerns first and foremost and avoid being drawn into foreign quarrels. Missouri Senator Josh Hawley gave voice to these sentiments by saying, “Sending new troops, expanding the security commitment and expanding NATO—I just think that’s a strategic mistake.” In terms of policy, this group aligns with the Putin Sympathizers.

The Republican Realists are the missing voices in the debate. These are national security types who prioritized advancing American business interests, which often meant making deals with hostile powers and finding a way to accommodate international differences. This is the tradition of James Baker and Brent Scowcroft. Unlike the Hawks, this group both understands and values diplomacy—especially when dealing with peer rivals like Russia and China. Unlike the Putin Sympathizers or the ”Why Should We Care?” Contingent, the Republican Realists were not unilateralists. They valued international agreements and building alliances.

If the current Ukraine crisis recedes, we’re likely to see a renewed debate among the Hawks, the Putin Sympathizers and the “Why Should We Care?” Contingent. Yet all of them offer unsatisfactory solutions. They are either too militaristic or too unilateralist. The disappearance of Republican Realists means that we’re not likely to get a shrewd and prudential Republican foreign policy alternative. Which is too bad, since in a two-party system that’s something that is desperately needed.